Portable power supply device

Abstract

The portable power supply device in accordance with the present invention comprises at least one Zinc-Air battery module composed of at least one battery unit and a power transmission interface. In an embodiment, the power transmission interface can be selected from a charging connector, a charging socket or a charging cable with a linking connector. The portable power supply device can be connected to a portable electronic device through the power transmission interface, and can be applied to be the main power or the backup charging power for the portable electronic device. In an embodiment, the battery unit can be a primary Zinc-Air battery, rechargeable Zinc-Air battery, Zinc-Air battery with replaceable zinc plate, or Zinc-Air battery with replaceable zinc gel, and supply the voltage from 0.8V to 24V for well power charging to the portable electronic device. The power transmission interface is coupled to at least one pair of conductors of the Zinc-Air battery module, and for transmitting electric current generated by the Zinc-Air battery module. The Zinc-Air battery module and the battery unit are simultaneously made of at least one flexible material through integrated molding.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a portable power supply device, and more particularly to portable power supply device which can be a main power or an emergency backup charging power.BACKGROUND OF THE PRESENT INVENTION[0002]The rechargeable battery is applied as power of the portable electronic devices, such as Personal Digital Assistant (PDA), digital still camera (DSC), digital video camera (DV), note-book personal computer (NB), or cellular Phone. Therefore, it is high maneuverability in application which is not restricted by time or space.[0003]However, the rechargeable battery for portable electronic devices is usually provided with less electric capacity and its electric capacity will be consumed as the operation time of portable electronic device increases. Because of the above reason, the shortcomings of portable electronic devices are limited by electric capacity of rechargeable battery and needed to judge whether to charge immediately or not. Wh...

AI Technical Summary

Benefits of technology

[0011]In order to overcome shortcoming of alkaline battery and Ni / MH battery in low capacity, environmental pollution of heavy metal, and poor efficiency of conventional battery casket type portable power supply device, the inventor of the present invention based on years of experience in the related industry to develop the battery unit of new generation, such as the modularized Zinc-Air battery, with one power transmission interface, which has advantages of high electric capacity, environmental friendly, light weight, slim size and easy to carry. After experimenting repeatedly, it results in the development of the present invention “portable power supply device”.

[0014]The battery unit further includes an air cathode, a zinc anode, a separator and a mounting bracket. The zinc anode and the air cathode can be connected with the pair of conductors of the Zinc-Air battery module. The air cathode is prepared by carbon powder, a cathode electric current collector, PTFE (polytetrafluoroethylene) binder, and catalyst. The zinc anode can be composed of zinc gel and an anode electric current collector, and zinc gel further includes zinc powder and electrolyte. The separator is used to prevent the air cathode from contacting the zinc gel to result in short circuit. As the mentioned-above, the separator can be made of PP, PE or other polymer membrane, and has subtle apertures so that the electrolyte of zinc gel can infiltrate into the air cathode through the subtle aperture of the separator. The mounting bracket could fasten the separator and the air cathode.

[0015]Besides, in one embodiment in accordance with the present invention, the battery unit of Zinc-Air battery module can be selected from primary Zinc-Air battery, rechargeable Zinc-Air battery, Zinc-Air battery with replaceable zinc plate, or Zinc-Air battery with replaceable zinc gel. Further, the Zinc-Air battery module can be a single Zinc-Air battery or multiple Zinc-Air batteries incorporated with a regulator module, a booster module or a booster regulator to boost voltage of the Zinc-Air battery module. The advantage of incorporating with the booster module or the booster regulator can decrease complexity in designing the battery connected in serial or in parallel.

Problems solved by technology

However, the rechargeable battery for portable electronic devices is usually provided with less electric capacity and its electric capacity will be consumed as the operation time of portable electronic device increases.

Because of the above reason, the shortcomings of portable electronic devices are limited by electric capacity of rechargeable battery and needed to judge whether to charge immediately or not.

When it is not allowed to charge the battery of portable electronic devices immediately in situation, the portable electronic devices can not work because the power is exhausted.

The portable power supply device can comprise a large-scale battery, or more batteries connected in serial or in parallel for obtaining higher electric capacity, but it results in the increasing of weight and the volume of this battery casket.

It is not convenience to carry this portable power supply device.

So using the conventional battery casket type portable power supply device to charge power costs relatively high and is not an effective solution.

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